Laser device
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United States of America Patent
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-
May 25, 1993
Grant Date -
N/A
app pub date -
Oct 29, 1990
filing date -
Oct 30, 1989
priority date (Note) -
Expired
status (Latency Note)
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Abstract
Angles of inclination of the two wavelength selection elements arranged on an optical path of a laser beam source are varied to make a laser output variable. Light transmitting ranges of the two wavelength selection elements are coincided with each other so as to adjust the light wavelength bands, thereby the laser beam is narrowed without increasing its fineness.
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